Forgot your password?
typodupeerror

Comment Re:Fun fact (Score 1) 63

It'll leak all over the place. Hydrogen under pressure is too bulky to use in aircraft. It would have to be liquid cooled and it would leak all the way from the plant to the plane. Because as hydrogen warms up it evaporates and that gas has to be vented. Now perhaps we could vent / burn it safely, or perhaps we can't.

This is all irrelevant to the question of whether it would leak enough to be a greater greenhouse issue than burned jet fuel. As I established in another post in reply to you just now, that would need to be nearly a quarter of all of the hydrogen used in such a system. That is an extremely unlikely scenario.

Once again, I am not talking about any of the other logistical questions about using hydrogen like this. Only the greenhouse gas issue that came up.

Comment Re:Fun fact (Score 1) 63

There's no doubt that it's very iffy if this would be more suitable for aviation than other synthetic fuels. There are lots of potential issues. However the greenhouse warming potential as an issue just doesn't make mathematical sense. As far as 37X vs 12X, doesn't really matter since I addressed 37X in my post.

To cover it again, GWP is by mass. So, if 1/37th of the mass of CO2 in hydrogen is released, we're saying it's just as bad. However, we have to start by considering that we're not burning CO2 in engines, we're burning other fuels. In jets, we're burning jet fuel. That's just kerosene. Kerosene has about 12 kWh of energy per kg. Hydrogen has about 34 kWh of energy per kg. There are all sorts of practical questions about volumetric efficiency, etc. but all other things being equal, you use about 2.83 times as much hydrogen for the same air mileage as jet fuel. At the same time, the CO2 released from the jet fuel is about 3X the mass of the original fuel. So, right off the bat what we have a multiplier of about 8.49 we need to consider. In other words, if hydrogen is 37X as bad as a greenhouse gas as CO2, then 37/8.49=4.36 is the actual number we need to consider. In other words, for hydrogen as a fuel to be as bad as jet fuel, then 22.94% of the hydrogen has to outright leak in to the atmosphere. Despite potential issues containing hydrogen, this would be extremely unlikely.

We can get into externalies, but if we compare externalities for synthetic hydrogen vs. jet fuel, the hydrogen is still going to look better from a greenhouse gas perspective than the jet fuel. None of this is to say, that hydrogen would actually be better considering all of the other obstacles, but it clearly would not be as bad in terms of greenhouse contributions.

Comment Re:More from the "never happened" department (Score 1, Insightful) 226

My view is different where I take stance that invasion is to forceable take over land to claim ownership of it. Annex might be a better word for what I meant.

Find it hard to believe the "why" of an invasion is even relevant. I can see China invading the western seaboard of the US telling Americans hey no worries we do not "claim ownership". As if any living person in the US would give a flying fuck about such utterances.

The big point is Russia is trying to take ownership of Ukraine, like it has done in many places before. Where as nobody in recent history has tried to claim ownership of Russian. Going back to your post that being a nuclear power does not prevent invasion and then using Ukraine as example, it is a bad example.

In Ukraine's example the nuclear deterrent does not apply because if Russia nuke Ukraine it will likely have same result as surrender.

Front lines are too diffuse for tactical nukes to have much of a strategic effect. Unless Russia plans on lobbing strategic nukes at major population centers which sure as heck is not the "same result as surrender" even nukes are unlikely to result in surrender and may well backfire.

Read up on The Holodomor for what Russia did to Ukraine in the past if really don't understand why the Ukrainians are fighting so hard.

I don't see the relevance WRT invasion claims.

The Ukraine attacks of Russia are because Ukraine has nothing to lose, their choice is risk a fast death vs a likely slow death after surrender.

Being a nuclear power is an effective deterrent to invasion from countries that have something to lose in a counter attack i.e MAD.

"Nothing to lose" rhetoric is not credible. Relevant differentiation is lack of threat to state survival. In an alternate reality in which Oct 7th attacks sufficiently threatened the survival of Israel I have little doubt Gaza would be converted into a glass parking lot. There were voices in the government calling for it in this reality and of course daily voices calling for nuking Ukraine and the "west" from Russian state media.

Comment Re:Absolutely needless (Score 1) 35

It's not difficult - Iran must be balkanized if Israel is going to conquer the Middle East and expand its proper borders to "those promised by God". They will demand a regional empire beyond their borders as a "buffer zone".

The Eschatological Christian Zionists want them tp destroy the Al Aqsa Mosque and build the Third Temple so Jesus can come back. Much of the Senior Brass at DoD (or Department of War Crimes) believes in this.

Is it all absurd and crazy? Doesn't matter, it's what motivates the people with nukes.

That and Trump being blackmailed with Epstein Tapes. The news says it's specifically an audio tape of a phone call between those two.

This is what the people who want peace in the world are up against. We can't counter what we deny.

Comment Re:They checked the writing. Nobody checked the ch (Score 1) 46

> when your investigative toolkit is journalism

Exactly. The English Majors went where other investigators have previously gone and ruled out.

The stack of blockchain, Merkle Trees, halvings, etc. show a level of insight a quantum above Hashcash.

There's noting wrong with being "quite good" but "engineering genius" is something different.

Besides, Satoshi would never have stood for not funding mining with txn fees. The BTC chain is in danger of being unmineable very soon.

Comment Re:More from the "never happened" department (Score 2, Informative) 226

No they didn't invade Kursk, your statement is gas lighting. Ukraine used tactical options in the war Russia started to force Russia to change their resource allocation and to give them leverage in future peace negotiations. Ukraine said from the start they had no long term interest in the region.

You are the one gaslighting. The Ukrainian military invaded the Kursk region of Russia and held it for a year. This is common knowledge and an irrefutable fact. Their intentions don't change the fact a military invasion of a nuclear power took place.

Comment Re:They still want tolls? They'll get bombs, inste (Score 3, Informative) 141

Another "Say one word that could even be interpreted as not support Ukraine and I'll accuse you of Putin worship." guy. Yeah, great logic, moron. Everyone at ... is a "Putin worshiper". Very rational and well thought out...

Oh give it a rest Spirals. You are not merely opposed to war you actively support Russia and regurgitate every bit of false Russian propaganda there is while demonstrating guttural hatred of Ukraine like any good self respecting vatnik.

"Now, those women they sent away for safe keeping better learn to clean house and pole dance at speed, because daddy isn't coming home. He got blown up in a proxy war back home. Bad decisions to prolong wars have consequences (and so do foreign warmongers interfering, like you are advocating for). Ukrainian women are going to finish paying the price on strip club runway that Ukrainian men already have paid with their lives. "

"Fuck those beggars. They definitely provoked it with their shelling in Donbas and elsewhere after repeated warnings from Russia to stop."

"When Ukraine loses and capitulates to Russia they will never get back their lost territory. They probably shouldn't have been shelling Russians in Donbas and Luhansk and they'd never had the trouble with Russia in the first place."

"BTW, Ukraine is losing badly and this whole idiotic debate is about to end when we properly stop supporting this proxy war and war mongering BS"

"There was no 2014 coup? There was no shelling in Donbas before the war? There was no threat of joining NATO? Russia just invaded because they coveted Ukraine?"

Comment Re:Pyrrhic Victory (Score 2) 141

The former leader of Iran was 86 years old, in failing health, and facing increasing internal opposition despite repeated crackdowns. By killing him, the US turned him into a martyr, not just for hardcore loyalists in Iran, but for many others across the entire Middle East. And his replacement not only has political, ideological, and religious motivation, but: the US made it personal.

Assuming Mojtaba is not a vegetable he lacks religious credentials, has no charisma and hereditary ascension cuts against a core tenant of the Islamic revolution. What having him in place makes bare to Iranians is the IRGC is running the country as a mafia state and he is its puppet.

Thanks to incompetent drunk Pete Hegseth, the US bombed a school and killed a lot of little girls. That won't be forgotten for a long, long time. Not only has it enraged much of the population, but it undercut the opposition movement by providing fresh evidence that the US isn't and has never been on the side of the Iranian people.

More Iranians are enraged over the prospect of being abandoned as bombs stop falling. Iranians supporting attacks against the regime were well aware of the fact there would be collateral damage. There were never any safe options no matter what. On one hand you have unintentional mistakes and on the other deliberate regime massacres involving orders of magnitude more people coupled with omnipresent systematic terrorizing of the population.

The parade of unhinged threats from Trump has been an absolute gift to Iran's strategic and tactical military planners. if the ceasefire holds for a while, they can use the time to bolster defenses in at least some of the right places, because Trump gave them a target list. Politically, it nicely demonstrates to everyone -- including US allies -- that Trump is a psychotic moron who cannot be trusted. I think at this point that if he decides to pull the US out of NATO, they might offer to hold the door open for him. He is quite clearly demented AND insane: it's obvious on inspection.

Trump's rhetoric is certainly idiotic and highly counterproductive.

Bottom line: the US lost in every possible way, and provided a textbook counterexample to the principles expounded in The Art of War.

What is interesting is the degradation of Iranian terror networks throughout the region. Hezbollah's days in Lebanon appear to be numbered. PMFs facilities in Iraq are under attack. The Houthis know they won't be getting Iranian support any time soon and rather than exporting terror huge numbers of their proxies around the world are flooding the streets of Iran.

No better way to enhance a regimes legitimacy than a bunch of foreign paid mercenary boots on the ground at the behest of the regime.

We've seen a similar unraveling of Russian proxies due to their preoccupation with getting their asses kicked in Ukraine. The fall of Assad's Syria, loss of influence in Caucasus and Africa, abandonment of Transnistria.

There's a reason Iran wants to be paid in cryptocurrency, aka fake money for criminals. Do you know which country really REALLY wants cryptocurrency, lots of it? Which country has knocked itself out running numerous large-scale operations to get it? North Korea. That's the reason: Iran no doubt already has a deal in place for weapons, and the North Koreans are happy to supply them because they've very interested in finding out how those weapons perform in live combat against the US military.

North Koreans have been supplying weapons to the Russians for years. There is no need for any of this just to sell weapons or find out how weapon systems perform in real world conditions.

Comment Re:Must revoke copyrights/patents on EOL products! (Score 1) 36

Connect to what? My old Kindle connected via 3G. They'd have to rebuild the 3G cellular system to brick that. It will also connect via USB to allow access to its storage for side loading PDFs and open format compatible content. Since that requires no Amazon app, it will be fine. It still has many good years of life ahead of it.

Comment Lenovo not repairable? (Score 1) 49

I find the scoring hard to believe. Perhaps it has been years since I've looked and things have changed.

Apple and Microsoft last I remember were overly enamored with solder and glue. Doesn't Apple have some kind of whitelist/hardware signature thing requiring specialized tools just to replace components? Lenovo stinkpads had been screws from what I remember major components were serviceable.

About a year ago I went looking at one of the Dell rugged laptops (dual hotswap batteries, customizable ports) ultimately ended up deciding against it once I found out you literally had to strip the entire machine down removing mainboards, heat sinks..etc just to access the sodimm slots to add/replace memory.

Comment Re:Or ... (Score 1) 226

You transmit using a secure protocol (burst, frequency hopping) and then move. The enemy can only track your position to where you last broadcast from (you can bet the Iranians knew roughly where the missing pilot landed). At some point, the subject can stop transmitting and listen for instructions from the rescue team.

Comment Re:Microsoft issues the Linux keys too (Score 0) 64

Microsoft issues the secure boot keys that are used by all Linux distributions.

This is separate from secure boot. In Windows kernel drivers are required to be signed. The trust anchors from what I remember are hard coded into the operating system. You can't even add certs for drivers to the systems store.

This can only be bypassed by booting with driver signature enforcement disabled. Having users do that is not all that feasible.

Slashdot Top Deals

You can tune a piano, but you can't tuna fish. You can tune a filesystem, but you can't tuna fish. -- from the tunefs(8) man page

Working...